...unless I'm mistaken of course, but from what I've looked, no one has (yet) built a guitar amp based on the STM32 ARM microcontrollers. So, this one's the first!
I've been working on my DIY guitar amp for a couple of years, starting as early as 2012 or so I recall, with the cabinet.
While I could have gotten a good modeling amp (Line6, VOX, et al) I think they are way over the top for what I want. Too many effects, in the end, you fiddle more with the amp than with the guitar. But an all analog design while nice, can be modified only on hardware, and those are costly and time consuming iterations. No problem with that, but you also want to have decent results from time to time. The idea came to me then, 2011 actually, why not build a very simple input stage with some gain, pass it onto a microcontroller via a ADC, add some effects, and take the output out via DAC / Amp combination?
